On Wed, Nov 18, 2009 at 09:30:43PM -0500, Brian Beuning wrote: > RAID 6 is cool technology, but does not make sense with just 4 disks. > There would be 2 data > disks and 2 checksum disks. Every logical disk block write, would do 3x > disk reads and 3x disk writes.
Yes, RAID-10 is a much more common configuration for four disks. Same amount of space, much higher performance (especially write performance in database-like workloads). The downside is lower reliability -- if you lose two disks, there's a 50% chance that your RAID goes with it, but that kind of scenario would typically be in “have backups” land. /* Steinar */ -- Homepage: http://www.sesse.net/ _______________________________________________ Prime mailing list Prime@hogranch.com http://hogranch.com/mailman/listinfo/prime
